PMID: 2493433Mar 1, 1989Paper

Radiotherapy, chemotherapy, and tamoxifen as adjuncts to surgery in early breast cancer: a summary of three randomized trials

International Journal of Radiation Oncology, Biology, Physics
L E RutqvistS Friberg

Abstract

The paper summarizes up-dated results of three randomized adjuvant trials from the Stockholm Breast Cancer Group. The objective of all studies included an evaluation of the role of megavoltage radiation in the primary management of patients with early breast cancer. The first trial was started in 1971 and included 960 pre- and postmenopausal patients with operable disease. The study compared adjuvant radiotherapy with surgery alone. All patients were treated with a modified radical mastectomy. There was a sustained improvement of the recurrence-free survival with radiotherapy (p less than 0.001). Among node positive cases radiation reduced the frequency of both loco-regional recurrence (p less than 0.001) and distant metastasis (p less than 0.01). This observation indicates that distant dissemination in subgroups of patients can originate from uncontrolled local deposits of tumor cells, for instance in the regional lymph nodes. No adverse effect from radiation on long-term survival was observed. The second study was started in 1976 and compared postmastectomy radiation with adjuvant chemotherapy in pre- and postmenopausal high-risk patients. At a mean follow-up of 6 1/2 years there was no significant difference in recurrence-fr...Continue Reading

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